Hi @gs316328German and Chineese are currently a work in progress for me so could you please provide some english info about it. Just a guess - if it's a script for adding a snowflakes effect to your site 0 than the end of body is the place to add the <script> tag. This is if you have the Code Editor Extension. If not - the Google nanlytics field will also do just fine

But do have in mind please you chould place the ENTIRE url in the SRC field 0 meaning like with http:// and stuff or in case you're providing a relative url like the one in the article from your hyperlink you chould manually upload the corresponding asset script files to the correct position on your server along with the generated by your builder html pages and preview on server in order the script to get detected and therefore - loded. In simple words - with the relative paths the browser looks taking the folder where index.html is located as a root dir and navigating down from there. So whereever you place your generated pages you should also place the script files according to the paths you've defined in order to see things correctly.

If the script is rather short you can also embed it in yout Mobirise project directly placing it in a <script> tag instead of the link to it - like open the script file, with a text editor, wrap the whole thing, copy it and paste either in End of body or Google analytics fields (first one preferrably) This way you'll get a bit heaview page though

Basically that's it - hopefully I've guessed what you need and provided you with some helpful tips

If not - pls write back some more info in englih and I'll try helping whatever I can

Do note - I altered the script tag a little bit in order to get it read also in local preview builds - that's the way browser shows the original when asked opening it

Respect to DeltaPi for the efforts but personally I think things should be simpler - for me including a line of code seems more like it since especially nowdays when the Builder evolves in each version adding third party extensions might become a russian roulette